Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Design Example: Flow Through a Fire Extinguisher01:12

Design Example: Flow Through a Fire Extinguisher

136
A fire extinguisher that uses pressurized water relies on fluid dynamics principles to generate a high-velocity stream capable of suppressing flames. The water is stored at a much higher pressure inside the extinguisher than the surrounding atmosphere. This pressure difference forces the water to flow rapidly when the extinguisher is activated, and the behavior of the water as it exits the nozzle can be understood using fundamental equations of fluid dynamics.
The key to understanding how the...
136
Typical Model Studies01:30

Typical Model Studies

358
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
358
Design of Prismatic Beams for Bending01:23

Design of Prismatic Beams for Bending

228
The design of prismatic beams, structural elements with a uniform cross-section, focuses on ensuring safety and structural integrity under load. The design process begins by determining the allowable stress, either from material properties tables, or by dividing the material's ultimate strength by a safety factor. This safety factor is essential for accommodating uncertainties, and varies depending on the material—timber, steel, or concrete—with each having unique strength and...
228
Design Consideration01:22

Design Consideration

186
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
186
Prismatic Beams: Problem Solving01:15

Prismatic Beams: Problem Solving

111
In the design of a supported timber beam subjected to a distributed load, both the beam's physical dimensions and the timber's characteristics, such as its grade and species, are critical. These factors determine the allowable stress values, which are crucial for calculating the necessary beam depth to ensure structural integrity and safety.
The design begins with analyzing the beam as a free body to identify moments and force balances, thereby determining support reactions. Next, the...
111
Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

164
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
164

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Embodiment of a functionally altered virtual arm in adults and children.

Cognition·2026
Same author

Recycling, Remanufacturing and Applications of Semi-Long and Long Carbon Fibre from Waste Composites: A Review.

Applied composite materials·2025
Same author

The well-worn route revisited: Striatal and hippocampal system contributions to familiar route navigation.

Hippocampus·2024
Same author

The role of visuomotor synchrony on virtual full-body illusions in children and adults.

Journal of neuropsychology·2024
Same author

The potential of construction robotics to reduce airborne virus transmission in the construction industry in the UK and China.

Heliyon·2024
Same author

Alice in Wonderland: The effects of body size and movement on children's size perception and body representation in virtual reality.

Journal of experimental child psychology·2022

相关实验视频

Updated: Jun 29, 2025

Design and Optimization Strategies of a High-Performance Vented Box
14:23

Design and Optimization Strategies of a High-Performance Vented Box

Published on: June 9, 2023

1.1K

一个模型生成方法和代算法,用于优化防火厚度.

Yang Li1, Zhuoran Feng1, Simon Thurlbeck1

  • 1Department of Solids and Structures, The University of Manchester, Booth St E, Manchester M13, UK.

MethodsX
|March 25, 2024
PubMed
概括
此摘要是机器生成的。

碳化合物燃烧迅速降低了钢铁的强度. 这项研究介绍了一种优化钢结构透涂层厚度的方法,提高防火效率并缩短建模时间.

关键词:
亚巴克斯内核脚本编写方法消防安全设计的设计热传递是一种传递热量的过程.透涂层是一种透涂层.复合模型的模型生成方法和代算法,以优化防火厚度.

更多相关视频

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

1.5K
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.1K

相关实验视频

Last Updated: Jun 29, 2025

Design and Optimization Strategies of a High-Performance Vented Box
14:23

Design and Optimization Strategies of a High-Performance Vented Box

Published on: June 9, 2023

1.1K
Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption
10:36

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

1.5K
A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
09:04

A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump

Published on: June 1, 2022

3.1K

科学领域:

  • 结构工程 结构工程
  • 消防安全工程 消防安全工程
  • 材料科学 材料科学 材料科学

背景情况:

  • 碳化合物火灾导致结构钢的强度迅速降低,在石油和天然气等行业构成重大风险.
  • 嵌入式涂层对于钢结构的被动防火至关重要,防止材料性质的减少.
  • 目前用于优化防火的传热模拟受到重复建模和缺乏重新计算原则的阻碍.

研究的目的:

  • 开发一种自动化的方法来生成用于防火分析的钢梁模型.
  • 创建一个有效的算法,以优化基于区域温度考虑的阴暗涂层厚度.
  • 通过减少手动建模工作来提高防火优化的生产力.

主要方法:

  • 介绍了一种新的方法,在三面加热条件下自动生成Abaqus钢梁模型.
  • 关键变量包括截面尺寸,绝缘厚度,目标温度,加热时间,允许的温度和网格大小.
  • 一个代算法改进了防火厚度,并结合了准确优化温度补贴.

主要成果:

  • 该方法成功生成了钢梁模型,并优化了38个通用梁段的涂层厚度.
  • 在测试中使用了低于目标温度的5°C的准值.
  • 超过55%的模型在五次代内得到了优化,76.3%在八次代内得到了优化.

结论:

  • 开发的方法显著提高了优化钢结构对碳化合物火灾的透涂层厚度的效率.
  • 自动建模和代算法减少了消防设计所需的时间和精力.
  • 这种方法为在高风险行业中提高钢结构的消防安全提供了实际解决方案.